A very common thing these days is people show up and they ask us in the band to sign with a Sharpie right on their skin and they go get it tattooed the next day. Then they'll show up at another show and they'll have their tattoo. ↗
Walt understood all of those things, and even common things about people. For instance: Usually you get your idea of what kind of day it is by looking at the horizon, because the horizon is your eye level. So what Walt did is to eliminate the horizon. ↗